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The Gunslinger


Out of curiosity, I made my own Texas Hold Em' probability calculator. It's not very good for cheating, but it is good for studying the game.

Download .zip archive

The Gunslinger 1.0

2006 Ben Sauerwine

http://www.andrew.cmu.edu/~bsauerwi

This program is freeware.  You may redistribute it intact as freeware.

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How To Run
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Un-Zip both executables to the desired folder (desktop will work).  

Run GSGUI.exe

If you get an error when trying to calcuate odds, be certain that 
GSINT.exe is in the same folder.

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Background
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This program uses Monte Carlo simulation to try to determine the 
probability of various outcomes.  There are five things to note:

-The Card icons

Select a two-card hand from the card icons.  You may now calcuate 
the various odds with the rest of the cards unknown "question marks".  
When you're finished, hit stop calculating and then reveal as many 
cards as have appeared on the table.

-Number of Opponents

This is a touchy dropdown box!  The more opponents you have, the more 
money will be seen or raised you as you lay down cards, but the lower 
your chance of winning.  Further, it is likely that those with weaker 
hands will fold, so that if you are playing with ten people and all 
but one initially fold, it stands to reason that the person who did not 
is either very good at bluffing or has one of the best hands of the ten.

Experiment with it;  numbers given reflect the assumption that all players 
stay in and that each player has a random hand (e.g., the fact that this player
is still in or not does not reflect the quality of their hand.)  This is not 
realistic:  different players will have differing degrees of "boldness" defined 
as bluffing or playing a poor hand.

-Chips on table

Occasionally, you may have a hand that will probably not win, but it would be 
mathematically worthwhile to stay in the game just to see what comes down the 
river.  If you enter a number here, the program will suggest a maximum call.

-Advanced > Interval

You should typically leave this as is:  this is how often the program timer 
should check to see if the last Monte Carlo set is complete.  A very small 
number would be optimal, but might lag some systems a bit.  

-Advanced > Work Unit Size

You should typically leave this as is:  a larger number is optimal, but may 
result in slower updating of the calculation.  A smaller number might lead 
to the interval (described above) taking more time than the calculation itself!

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Can you help me cheat?
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This program is really not appropriate for cheating.  It is, however, 
useful for refining your strategy and for study.  Observe how the 
odds of winning wildly shift with just a single additional card laid down!